Trouble with display of .epub in ADE after conversion with Calibre.

[notthatitmatters]

Hi

I've been given a few books in .pdf and want to read them as an .epub using Adobe Digital Editions. Knowing that .pdf is a bad format to convert to .epub using Calibre, I converted them [using Acrobat XI] to .html. Then converted the .html to .epub in Calibre.

Used search & replace and edit to clean them up, ran check to fix any errors. They display correctly in the .epub viewer in Calibre. The .html displays correctly in IE.

But in ADE each one has at least one large bare section. There is no text missing. The opening tag for the paragraphs either side are the same. The closing tags on both paragraphs are also the same. If I combine the paragraphs, the bare section appears within a few paragraphs. This occurs at approximately page 60 in each of the books.

Have updated both Calibre and ADE to the latest versions in case that would help. Using Win7 64bit.

Any ideas?

[JSWolf]

You'd be best to forget converting PDF and just read from the PDF as is. It's too much hassle to do it correctly and you WILL end up with MANY ERRORS.

[theducks]

It all depends on 'THE' PDF.
Almost 0 will be perfectly converted, but many of the 'Almost', will be fixable once you develop skills with the Editor and HTML

Illustrations, text treatments , decorations all move the slider towards

If your device supports ADE, you just might be better off using that (native PDF)

[JSWolf]

Almost is rare. Most PDF conversions come out a mess.

[BetterRed]

Originally Posted by theducks

If your device supports ADE, you just might be better off using that (native PDF)

The OPs device is a PC, and they want to use ADE

@notthatitmatters - ADE 4.5.2 can read PDF's (hardly surprising). So why do you think you need to convert the PDF to EPUB.

If its just a few books you could simply drop them into the ADE library and get on with enjoying them. Conversions are usually only worthwhile if you read on an ebook reader (Kindle, Kobo etc), a phone or a small tablet. On a desktop or large tablet you probably don't need to convert at all - especially PDFs.

BR

[notthatitmatters]

Oh well, thanks anyway.

[Divingduck]

Originally Posted by notthatitmatters

Hi
This occurs at approximately page 60 in each of the books.
Any ideas?

Had you check the file size within the ebook? This sounds like the html file is to big...

[theducks]

Originally Posted by Divingduck

Had you check the file size within the ebook? This sounds like the html file is to big...

I never heard of a size issue on a PC . I guess this PC could be really old, with little RAM or a bottom end VIDEO card/chip. But if that was true, even Regular MR should pose a problem

[notthatitmatters]

Originally Posted by Divingduck

Had you check the file size within the ebook? This sounds like the html file is to big...

File size is 127KB. What size would be too large for the html file?

As for the PC, it is 3 years old, with 8 GB RAM. Will be upgrading shortly. Have no issues playing video [dvds], using Adobe Photoshop to edit large images, or anything else memory hungry.

Originally Posted by BetterRed

ADE 4.5.2 can read PDF's (hardly surprising). So why do you think you need to convert the PDF to EPUB

The way ADE displays them is too hard on my eyes. epub is much easier.

Originally Posted by Divingduck

Almost 0 will be perfectly converted, but many of the 'Almost', will be fixable once you develop skills with the Editor and HTML

That's what I thought and am trying to do. If the html is correct for both calibre & IE, what's wrong for ADE?

The only image is the cover. If there was something embedded in the html, how would I find/strip it?

[Divingduck]

Originally Posted by notthatitmatters

File size is 127KB. What size would be too large for the html file?

That size is ok. I have sometimes single html files with 10Mb and bigger in a book and these kind of books make trouble in ADE.

BTW, my hw is potent enough (i guess...) as I use that pc for more challenged activities like video cutting

Anyway, your answer sounds like there is a problem in the HTML code. Had you checked the code with e.g. calibre editor for general html code problems? Or make a EPUB to EPUB conversion for that book. This should correct possible html errors in an ebook.

A test with calibre viewer isn't a real quality check for ebooks because the viewer havn't the limitations of ADE or an ereader app based on Adobe RMSDK.

I use Acrobat (in actual version) too, but I normally don't go the way you took.
I export the content with Acrobat in docx, use that for cleaning up the content in Word and make then the conversion to an ebook. I use my own VB toolbox in Word, but you should check out Toxaris EPUB Tools plugin for Word. It have a really good set of tools for standard situations. He is a member of the forum.
If you use MS Word >=2013, you can try out opening a PDF in Word direct. The results are sometimes better as results from Acrobat.

There are several ways to go from a pdf to an ebook. I use a couple of tools depending on the content and quality of the source. From different OCR's to Acrobat, Word, caibre and tools like Scantailor.
An easy one is Mobipocket Reader. It have for normal books like novels often really good results and don't need deeper experiences. May be you like to test it. It's free. Mobipocket Reader Desktop 6.2.

[theducks]

I second the 'Code has errors' idea. something is invalid.

That PC has plenty of oomph

BTW check the image files for errors.
To do that, you need to unpack ('U') the book and use a 3rd party image tool, Validate does not check for anything but coding syntax errors.

[BetterRed]

Originally Posted by Divingduck

That size is ok. I have sometimes single html files with 10Mb and bigger in a book and these kind of books make trouble in ADE.

BTW, my hw is potent enough (i guess...) as I use that pc for more challenged activities like video cutting

Anyway, your answer sounds like there is a problem in the HTML code. Had you checked the code with e.g. calibre editor for general html code problems? Or make a EPUB to EPUB conversion for that book. This should correct possible html errors in an ebook.

A test with calibre viewer isn't a real quality check for ebooks because the viewer havn't the limitations of ADE or an ereader app based on Adobe RMSDK.

I use Acrobat (in actual version) too, but I normally don't go the way you took.
I export the content with Acrobat in docx, use that for cleaning up the content in Word and make then the conversion to an ebook. I use my own VB toolbox in Word, but you should check out Toxaris EPUB Tools plugin for Word. It have a really good set of tools for standard situations. He is a member of the forum.
If you use MS Word >=2013, you can try out opening a PDF in Word direct. The results are sometimes better as results from Acrobat.

There are several ways to go from a pdf to an ebook. I use a couple of tools depending on the content and quality of the source. From different OCR's to Acrobat, Word, caibre and tools like Scantailor.
An easy one is Mobipocket Reader. It have for normal books like novels often really good results and don't need deeper experiences. May be you like to test it. It's free. Mobipocket Reader Desktop 6.2.

More often than not I use MobiCreator to convert to PRC, if necessary I convert that to Word (RTF), else I convert the PRC to ePub. Because I convert a lot of PDF's a single workflow is more important to me than the 'best' conversion. PDF->MobiCreator->PRC->calibre->RTF gives me the most consistent starting point if I need to edit the text. I save as DOCX and convert that to Epub.

BR

[notthatitmatters]

Originally Posted by Divingduck

Anyway, your answer sounds like there is a problem in the HTML code. Had you checked the code with e.g. calibre editor for general html code problems? Or make a EPUB to EPUB conversion for that book. This should correct possible html errors in an ebook.

Yes, I had checked with calibre's editor. Hadn't tried an EPUB to EPUB. Will see if that helps.

Originally Posted by Divingduck

I export the content with Acrobat in docx, use that for cleaning up the content in Word and make then the conversion to an ebook. I use my own VB toolbox in Word, but you should check out Toxaris EPUB Tools plugin for Word. It have a really good set of tools for standard situations. He is a member of the forum.

Have just installed Toxaris EPUB Tools plugin. This looks good, hopefully it can fix the code.

Originally Posted by Divingduck

An easy one is Mobipocket Reader. It have for normal books like novels often really good results and don't need deeper experiences. May be you like to test it. It's free. Mobipocket Reader Desktop 6.2.

Will check this out as well.

Thank you.